Thanks to Wire magazine on Twitter I found this info about the screening of two Cinema Action films "Squatters" (1970) and "So That You Can Live" (1981) at the British Film Institute today.
The soundtrack to "So That You Can Live" is music by Robert Wyatt, Scritti Politti and Lindsay Cooper.
Registered users in UK libraries, colleges and universities may watch clips over here.
This is what I wrote in an old blog post on Neil Taylor´s Rough Trade book back in 2010:
"Green Gartside (Scritti Politti) mentions a soundtrack he made with Robert Wyatt for a Cinema Action film called "So that you can live", about striking miners in Wales (Lindsay Cooper is also represented). I checked with Michael King´s "Wrong Movements. A Robert Wyatt history" (SAF 1994), and a "slow tempo performance of "Born Again Cretin"" seems to be on the soundtrack".